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How is the great tracts of land formed by deposition of silt evident on an examination of the soil in alluvial areas? |
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Answer» Great tracts of land formed by silt deposition is evident on an examination of the soil in alluvial areas. When silt-laden water mixes with the salt water of the sea, there is rapid precipitation of the suspended matter. The colour of the water changes successively from red or brown shades of silt through varying shades of yellow and green before it becomes blue of the deep sea. |
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